His oldest son will attempt to enter the league through the back door.

A long shot to make an NFL roster, Nate Montana has accepted an invitation from the 49ers to attend their rookie minicamp from May 10-12, the Sacramento Bee reported. Montana attended the team’s local pro day April 17 and said he received positive feedback from Jim Harbaugh.

Last year, Montana, 23, ended his nomadic college career at West Virginia Wesleyan, where he completed 51.6 percent of his passes, threw for 2,480 yards and had 19 touchdowns and seven interceptions. Prior to his one-year stop at the Division II school in Buckhannon, W.V., he has was a reserve at Pasadena City College, Notre Dame and the University of Montana.

After the 49ers’ local pro day, he said he’d be eager to explore other opportunities – in the CFL or in an arena league – if his NFL dream wasn’t realized.

Montana, who first played football as freshman in high school, has learned his last name can be burden. And it can also remove barriers.

“The expectations sometimes may be unrealistic,” Montana said. “But then also it may open a door, so you can’t complain about it.”